copy milestones from issue when using create merge request btn

app/controllers/projects/issues_controller.rb

@@ -212,7 +212,7 @@ class Projects::IssuesController < Projects::ApplicationController
   end
 
   def create_merge_request
-    result = MergeRequests::CreateFromIssueService.new(project, current_user, issue_iid: issue.iid).execute
+    result = ::MergeRequests::CreateFromIssueService.new(project, current_user, issue_iid: issue.iid).execute
 
     if result[:status] == :success
       render json: MergeRequestCreateSerializer.new.represent(result[:merge_request])

app/services/merge_requests/create_from_issue_service.rb

@@ -43,7 +43,9 @@ module MergeRequests
       {
         source_project_id: project.id,
         source_branch: branch_name,
-        target_project_id: project.id
+        target_project_id: project.id,
+        labels: issue.labels,
+        milestone_id: issue.milestone_id
       }
     end